is that right comodo ssl can't support mkr1000(arduino 1.8.3) ?

I used mkr1000 and wifi101(arduino1.8.3) and my server comodo ssl in window 2012.
I saw comodo ssl ( SHA-348 with RSA encryption) can't support.

through my server, connect fail, but connect other site for example www.google.com.
is that right can't support comodo ssl(SHA-256 with RSA)? and when can i connect in this environment?